// This file is part of OpenTSDB.
// Copyright (C) 2017 TeleDB Development Group.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or (at your
// option) any later version.  This program is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
// General Public License for more details.  You should have received a copy
// of the GNU Lesser General Public License along with this program.  If not,
// see <http://www.gnu.org/licenses/>.
package net.opentsdb.utils;

import java.util.NoSuchElementException;

public final class Assert {
  private Assert() {
  }

  public static <T> T notNull(T reference, String parameterName) {
    if (reference == null)
      throw new NullPointerException(parameterName + " cannot be null");
    return reference;
  }

  public static void operation(boolean condition, String message) {
    if (!condition)
      throw new UnsupportedOperationException(message);
  }

  public static void state(boolean expression, String errorMessageFormat, Object... args) {
    if (!expression)
      throw new IllegalStateException(String.format(errorMessageFormat, args));
  }

  public static void element(Object element, Object key) {
    if (element == null)
      throw new NoSuchElementException(key.toString());
  }
}